Cannot dial from Outlook

I have several PC's (Windows 7 64bit) on which the 3CX Outlook (2010 32bit) plugin does not seem to work. I am running v14 sp2 and the latest 3cx for windows client and plugin software. Client is running in CTI mode with Snom 300 handsets.
The PC's are on a network and were working with Outlook fine and dialling from Contacts ok until a new user logged into the PC's. The client and phone are registered fine and the 3CX plugin is running in Outlook, but when I go to dial it either does nothing or gives me a message saying that the number is already being dialled.
Tried reinstalling the client and plugin but it doesn't work. Anybody seen this before and know how to resolve?
thanks

3CX Support

Are you are using 3CX Phone system with a standard license? if so then there is a new 3CXPhone app which when installed can resolve this issue. This will also be resolved with the release of v14 sp3, which should be with us shortly.

In the meantime in order to get this new version you will need to contact your 3CX reseller/partner or distributor to open a ticket on your behalf, if you are not a partner or have an active support contract, with our support team so that they can look into this for you and send you the new version.

Charalambos Eleftheriou
3CX Senior Engineer (Support)

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